Flush valves for toilet tanks



June 14, 1960 F. FABB1 ETAL 2,940,084

VFLUSH vALvEs FOR ToILT TANxs Filed March 18, 1958 I I I I I FIE' E INVENTOR FABIO FABBI PETER R CHIAPPETTA a BY ATTORNEY United States Patent O FLUSH VALVES FOR T OILET TANKS Fabio Fabbi, 5731 W. 171st Place, Tinley Park, Ill., and Peter P. Chappetta, '4606 Main St., Lisle, 111.

Filed Mar. 18, 1958, Ser. NO. 722,228

4 Claims. (Cl. 4-57) This invention relates in general to ilush valves for toilet tanks and in particular to a double fiush valve and control means therefor which will permit use of a portion of the water in the fiush tank for urinal purposes and all of the water when needed for a more complete flushrng.

A great deal of water is unnecessarily used in conventional fiush tauks because at each fiushing the entire contents of the tank are emptied. With the lowering of water tables throughout the nation and the rising costs of many things including the supplying of water, it is highly desirable to exercise some conservation methods. Use of our fiush valves will not only conserve water but Where septic tanks are used it will help keep down the saturation load on the septic tank system.

The objects of the invention are:

First; to provide a simplified bellows type valve having a valve seat at the lower end of the bellows which are hollow and form a passage, and a valve seating at the upper end of the bellows.

Second; to provide upper and lower valve seats, a rigid conduit between the valve seats, a bellows secured at its upper end to the upper valve seat and surrounding the rigid tube, the lower end of the bellows having a valve portion seating on the lower valve seat.

Third; to provide upper and lower valve seats concentrically disposed, an offset conduit forming a passage from a point adjacent the lower valve seat to the upper valve seat' Fourth; to provide in a conventional fiush tank having a-valve seat adjacent the bottom thereof, an auxiliary fiush valve system comprising a valve seat member receivable on the existing valve seat, an oifset passage leading from the valve seat member, an upwardly extending passage to a desired height above the lower seat, and a valve and seat at the upper end of said last named passage.

Fifth; to provide in a flush tank with a dual valve system, a valve control means comprising a dual directional handle, a shaft carried by the handle and engaging a lever arm, an offset and rearwardly extending arm on the lever arm, a second lever arm hinged in ofiset relation to the shaft and resting across the offset and rearwardly extending arm and extending in parallel and spaced relation to the first mentioned lever arm, movement of the handle toward the right causing the first mentioned lever arm to rase to empty the entire contents of the tank, movement of the handle toward the left causing the offset and rearwardly extending arm on first mentioned lever arm to contact and rase the pivoted second mentioned arm for urinal fiushing purposes.

Other objects and advantages as well as the construction and operation of our invention in its various forms will be better understood by reference to the following description in connection with the accompanying drawing in which:

Fig. 1 is a Vertical cross sectional view, partly in ele- Patented June 14, 1960 ICC 2 vation, showing one form of our invention with ball valve in cage, bellows and lower valve without air chamber.

Fig. 2 is a similar view of a modified form of our invention with rigid Vertical tube concentric with bellows valve and fiat upper valve.

Fig. 3 is a fragmentary top plan view of the form shown in Fig. 2.

Fig. 4 is a fragmentary sectional view of a modified form of construction showing the lower end of the bellows valve.

Fig. 5 is a similar view of a further modified form.

Fig. 6 is a Vertical cross sectional view of a modification showing an auxiliary offset valve system mountable on the existing tank valve seat.

Fig. 7 is another modified form somewhat similar to that shown in Fig. 6.

Fig. 8 is an isometric view of the valve control lever and linkage.

Referring now to the drawing by numerals of reference, 1 designates the conventional vent tube in a fiush tank 2, with valve seat 3. Our invention employs an 'upper valve seat 4 supporting ball 5 in cage 6, the valve seat having a bracket 7 adjustably carried on vent tube 1. A chain 8 leads from the ball to the valve control means to be descn'bed later.

A bellows 9 has its upper end 10 secured to fiange 11 on the valve seat 4 and the lower end of the bellows has valve 12 seated on valve seat 3, the lower end of the valve 12 having `aperture 13 forming discharge opening from passage 14 in the hollow bellows. A chain 15 leads from the valve to a valve control as will be hereinafter described.

In the modification shown in Fig. 2, a rigid tube 16 extends downwardly from the valve seat 4, concentric with and to a point below the top of the lower valve seat 3. The bellows 9 and valve 12 may ride up and down on this tube which may be solid or perforated as shown.

Fig. 4 shows a modified form of our invention in which a flat type valve 17 s secured to bellows 9, acentral aperture 17' being provided in the valve 17.

A further modified form shown'in Fig. 5 shows a. flat valve 18 with fiexible extension 18' carried by vent tube 1, said extension acting as ahinge.

The form of our invention shown in Fig. 6 shows an auxiliary tube 19 with transverse passage 20 leading to valve seat 3', a bottom fiange v21 adapted to snugly engage conventional valve seat 3. Tube 19 is offset whereby upper end 4' which comprises the upper valve seat, is concentric with the lower valve seat although this is not absolutely essential. The upper end of the tube 19 is carried by suitable bracket 7' to vent tube 1. Any of the previously descn'bed valves may be used on the upper and/or lower valve seats. We have shown a flat or "Corky type valve 22 in Fig. 6.

Fig. 7 shows a Vertical tube 19' with transverse passage 29' leading to valve seat 3'. The fiange 21 securely grips valve seat 3 and a projection 23 aids in holding the device steady. In this form no support on the vent tube is used.

The valve control comprises a handle 24 with indicia 25 indicating direction to move handle for the desired flushing action. A shaft 26 extends rearwardly from the handle 24 and is fixed in nonrotative relation to lever 27, said lever having a transverse leg 28 extending rearwardly and passing under lever 29 which is pivotally engaged at 30 to leg 31 of bracket 32, the leg 33 of which is supported on shaft 26, the latter being freely movable with respect to the leg 33. Chains or linkage 8 and 15 lead to levers 29 and 27 respectively.

In Operating any of the forms of our device shown,

movement of the handle 24 to the left will cause com- A in the flush tanlgpan upper valve supportingp member adarrangelnent can be accomplished with no alteratiollV of existing structure.V i' i From the for'egoing it will bel apparent that we have devis'e'dV a new and novel arrangement of flush va'lves for tilet in which a simple and effective. valve control leve'r linka'ge system "is vem'ployed to operate novel valveand. valve seat structure. i

O'bvio'u/sly, changes in form, propor'tion and details of Vconstruction may be resortedto without departingrom the spirit of o'ur inventio'n and We lreserve all rights to such changes as come within the scope of these specfications and Vthe, Claims which follow.

What We climras new and de'sire 'to' secure by Letters Patent 's:

, 1. Ajdoubl'efiush valve as'sembly for toilet flushtanks, in combination with the overflowrpipe andthe valve seat adjacent the b'ottom of the :fiush tank, a valve on the' seat in the fiush tank, an upper valve suppol'ting member adjustably carried by the'over'flow pipe, a hollow bellows connectin'g member between the valve `and theV upper valve suppol'tingV member forming a continuous fiuid passage 'fromthe valve seat toithe upper valve supporting 'm'mben a second valve seat in the upper valve supporting member, 'a valve on said second valve seat,V and means for independently OperatingV either of the two valves, said hollow,bellowsV providing means vfor longiftudinal. a'dj'ustment between the two 'valve seats, the

hollow'rbellows being deforh'l'ablepupon actuation of the Vvalve onthe seat in the fiu'sh tank, said last mentioned valve being .provided With a central aperture and being 'justably carried by the overow pipe, a holl'w bellows connecting member betweenrthe valve and the upper valve supportng member forming a Vcontinuous fiuid passage from the valve seat to the upper Valve suppo ing member, a second valve seat in the upper valve supporting member, a valve jon; Said second valve seat, andV means ,forflindependently Zoperating eitherofthe two valves, said hollow b'ellowspr'oviding means'for longitudinal Vadjtlstment:between the twoj valve -seats51 Vthe hollowV bellows b'ingfdeformablet-uponfctation;of the first mentioned valve, said first mentioned valve being provided With 'a-'ceht'rallaperhir' aV rigiiil d'u'cttcarried by the upper valve supporting member and positioned within the hollow bellows, and anV inwardly and downwardly Vextending annnlar lip seating on the seat in the flush tank and Vformed integrally with the hollow bellows to provide a continuation of the continuousjfluid fpassagelthrough said bellows, said annular lip on said first V-rnention'ed valve being adaptedto rideon the rigidduet'during movement of said hollow bellows, ;sa-idV duct vguiding the lip to its seat.V i i depending from the upper .valve supporting .member to a point below theV valve seat adjacent the' bottom ofth'e tlush tank, v the hollow bellows connectingmember being postioned' concentrically about the jrig-id duet and v'ertically movable thereon.

p 4. The structure as specified in claimjl, said rigid duct being provided with` perforations and dep'ending from Vthe uppervalve supporting member to a point below the valve seat adjacentrthe bottom of theofiush tank,'the

toV

formed integrally with the hollow bellows to provide a ontinuation of: the continuous fluid' passage through said bellows, and'a 'i'g'id duet carried by the upper valve suppor'ting member and psition'ed within the' hollow bellows;

2. ,doubleflush valve assiembly for mllrflush maks, t

Vin combination With 'the ove'rfl'o'w pipe and the valvej'seat adjacent the bottoinof the flu'lsh tank, avalve on 'the seat hollow bellows connecting v member being position'ed concentrically aboutthe rgidv duct and vertically m'ovble thereon, the perforations in the rigid duct'permitting discharge of water to theinterior of the hollow bellows.

References cld in the fil of :sis ajtnt i p UNITED Vslulrns PATENTS z o 3. The structure as specified in claim 1,, said rigid duet I 

